Tapad - Tapad is a cross-device tracking, analytics and marketing platform.
Klevu - Klevu offers instant site search solution for eCommerce stores.
Appier - Appier offers next generation cross-screen marketing solutions to advertisers across the globe.
Google Custom Search - Google Custom Search enables you to create a search engine for your website, your blog, or a collection of websites.
LumenAd - LumenAd is rich-featured advertising intelligence software that delivers holistic, flaw-less management tools and elegant reporting of all of your cross-channel data.
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.